You are eligible to receive one-half (50%) of your ex-spouse's retirement benefit. If your ex-spouse should die before you, you can receive their full retirement benefit. The benefit does not include any delayed retirement credits your ex-spouse may receive.
The spousal benefit can be as much as half of the worker's "primary insurance amount," depending on the spouse's age at retirement. If the spouse begins receiving benefits before "normal (or full) retirement age," the spouse will receive a reduced benefit.